Reengineering Life
Scientists Are Gene Editing Coral to Help Them Survive Climate Change
CRISPR was used to identify a gene for heat tolerance in corals
Reengineering Life is a series from Future Human about the astonishing ways genetic technology is changing humanity and the world around us.
In 2016, the Australian Bureau of Meteorology recorded the hottest sea temperatures on record near the Great Barrier Reef, the world’s largest coral reef system. The heat wave lasted for weeks, triggering the worst bleaching event the reef has ever experienced. Nearly 30% of its corals died as a result.
Rising temperatures due to climate change threaten to bring on more coral bleaching and mass die-offs. Coral reefs are home to an estimated 25% of all marine species at some point in their life cycle, protect coastal areas from storms and erosion, and provide jobs to local communities.
In hopes of saving reefs on the brink of collapse, scientists are racing to understand why some coral survive and others don’t. Of particular interest are the genes behind coral survival. Using the gene-editing technique CRISPR, one group of researchers has pinpointed a gene responsible for heat tolerance in coral from the Great Barrier Reef.
